/**
 * <code>App</code> description
 *
 * @author sunqiyuan
 * @date 2020-04-30
 */
public class App {
    public static void main(String[] args) throws InterruptedException {
        while (true) {
            System.out.println(getGreeting());
            Thread.sleep(1000L);
        }
    }

    public static String getGreeting() {
        return "hello world";
    }
}
